The AS568-344 SIMRIZ SZ134 seal features a 3-7/8" inner diameter and 4-1/4" outer diameter, with a thickness of 3/16". This product from Freudenberg-NOK is engineered for high-performance sealing in various industrial applications. The SIMRIZ material is known for its exceptional resistance to chemicals and temperature extremes, ensuring reliability in challenging environments. This seal meets industry standards, making it compatible with a variety of systems. Ideal for hydraulic and pneumatic systems, it guarantees a secure and effective seal, enhancing operational efficiency.